Hi! I understand the number showing how many times a color is used isn't appearing in the circle with that color in your Zen Color app. Let’s try to get that sorted out.

First, just to clarify: is this happening on all your coloring images, or only certain ones? Also, have you recently updated the app or your device?

Meanwhile, here are some steps we can try to resolve this display issue:

1. Restart the App: Sometimes a quick restart refreshes the app's display elements. Close Zen Color completely and reopen it.

2. Check App Updates: Ensure you have the latest version of Zen Color installed from the Google Play Store. Developers often fix bugs like this in updates.

3. Clear Cache of the App: On your Android 10 device:
- Go to Settings > Apps > Zen Color.
- Tap on Storage.
- Tap Clear Cache.
Then reopen the app to check if the usage count shows.

4. Restart Your Device: A device restart can help clear any lingering glitches affecting app performance.

5. Internet Connection: Although this is mostly an offline function, make sure your internet is stable in case the app needs to sync data.

6. Reload the Image: If possible, delete the current image you are working on in the app, restart the app, and reload or start a new coloring image. Sometimes this resets display errors.

If you've already tried these, or the problem persists after trying them, please let me know. Then I can help you dive deeper or provide alternate solutions.

Are you able to try these steps now?